halliday



Oct. 2, 1928.

1,686,233 B. HALLIDAY SIGNALING DEVICE Filed April 6, 1927 INVENTOR Iff/r/P/a/v 505425 LAID/IV 1 v A, I W ATTORNEY Patented Get. 2, 1928.

UNITE MARION BORDEN HALLIDAY, OI NEW YORK, N. Y.

SIGNALING DEVICE.

Application filed April 6,

- found that excessive use of theinouth oper ated whistle under someclimatic conditions is conduciveto lung disorders. These and otherdiiliculties arising out oithe use'of the well known type of whistlewill be obviated by the use of a manually operated whistle such as isrontemplated in accordance with the present invention.

An embodiment of my invention is illustrated in the drawingsaccompanying the present specification in which.

Figure l is an end view partly in transverse longitudinal section. V

Figure 2, a central longitudinal section thereof. 7

Figure 8, a transverse section on the line 3-3 of Figure 1, and

Figure 4, a front view of a modified form.

Referring to the drawings, an air chamber 1. is fitted with a plunger 2having a hollow stem 3 which accommodates suitable Whistle mechanismpart of which is illustrated by the balletlying adjacent to an opening5. A finger piece 6 is mounted at the free end ofthe stem 3 and ispositioned to be pressed upon by the fingers of the operator. The plunger 2 is maintained in normal extended position by means of'a spring 7.The device as described'is maintained in position on the hand of theuser by means of a strap 8 sevuredin any suitable manner to the chamber1.. The signal device as described is maintamed in position on the handof the user in the, manner illustrated in Figure 1, that is with thestrap encircling the'users wrist and with the finger piece 6 impositionto be engaged by the users fingers. When the plunger 2 is depressedaga1nstres1stance of.

'when not in use.

v.vice. p

In testimony whereof, I have signed my.

1927. Serial No. 181.311.

the spring 7 by pressure of the finger, airin side the container 1 1Sforced through a 'passageway 9 in-the stem and apassage-way 10 in theplunger into operative contact with the whistle portion of the device.It is obvious that there may be variations as to the type ot whistleprovided and as to the location and operation of the plunger and springasseriated herewith without departing from the main inventive concept.

In the modification illustrated in Figure 4, a container 11 is providedwith plunger and whistle meghanism similar-to that shown in Figures lto3 inclusive. In addition thereto, a projecting member 12 secured to thecontainer 11 is adapted to engage between the tumb and palm of the handof the user to maintainthe device in operative position durplunger stem14 and serves both as a means for n'iaintaining the device in operativeposition and for depressing the plunger during operation. It will alsobe apparent that the ring 13 may be used for conveniently attaching the.device to a holder or retainer Other-uses and advantages of the signaldevice in whatever form it may talrefwill be apparent from aconsideration of the foregoing description and the drawings thereinreferred to, i

.1 claim--- v A manually operable signal device comprising an airchamber, a plunger mounted therein and provided with a stem, a whistle--in said stem communicating through said of the hand of a user, and afinger piece at the outer end of said stein, said lug and said fingerpiece being so positioned and related that endwise movement of the airchamber is prevented by the lug when the user presses down against thefinger piece in operating the dename to this specification this lstdayofApril. 1927. x

- MARION BORDEN HALLIDAY.

,stem and plunger with the interior of the air. chamber, a lugprojecting from a wall of said chamber and adapted to engage a portion

